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44 lines
1.3 KiB
44 lines
1.3 KiB
/*============================================================================= |
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Copyright (c) 2009 Hartmut Kaiser |
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Distributed under the Boost Software License, Version 1.0. (See accompanying |
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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==============================================================================*/ |
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#if !defined(BOOST_FUSION_NVIEW_DISTANCE_IMPL_SEP_23_2009_0328PM) |
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#define BOOST_FUSION_NVIEW_DISTANCE_IMPL_SEP_23_2009_0328PM |
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#include <boost/fusion/iterator/distance.hpp> |
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namespace boost { namespace fusion |
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{ |
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struct nview_iterator_tag; |
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namespace extension |
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{ |
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template<typename Tag> |
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struct distance_impl; |
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template<> |
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struct distance_impl<nview_iterator_tag> |
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{ |
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template<typename First, typename Last> |
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struct apply |
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: result_of::distance<typename First::first_type, typename Last::first_type> |
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{ |
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typedef typename result_of::distance< |
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typename First::first_type, typename Last::first_type |
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>::type type; |
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static type |
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call(First const& /*first*/, Last const& /*last*/) |
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{ |
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return type(); |
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} |
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}; |
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}; |
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} |
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}} |
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#endif
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